Actually this might be useful information to have available. I've been burned in the past by playing games on DS then having the save file lost because the micro-SD eventually wears out, so I got into the habit of making regular backups of the save files. With DS carts this was easy since the save file was named the same as the game file just .sav extension, but now with Gateway I don't have an easy way to figure out which save corresponds to which game.
Further complicating this is the new NAND-based save support in 2.1 (BTW thanks Gateway, my son is playing Pokemon X and loving it!). I initially formatted a micro-SD card as FAT32, copied Pokemon X onto it, tested and confirmed it as working, and set my son up to play. Afterwards I read about the benefits of exfat, so I formatted a different microSD exfat, copied several games onto it including Pokemon X. When I loaded Pokemon X from that card, the save game was gone. I switched back to the original card and loaded, the save was available. Then I re-formatted the 2nd card, copied Pokemon X as the first game onto the card, and re-tested, the save was now available. So for NAND-based saves, there is apparently some correspondence between the file's position on the microSD card and the save file.
Ideally Gateway could provide information in the SD card that labels each save, but barring that, I think this thread could save us time googling around and potentially copying the wrong save files. I'll try to look at the 3DS's SD card contents tonight and see what the NAND saves look like there, and will report any useful information I discover.
